Add ability to set annotations + labels for proxy-public service

We should eventually allow setting labels and annotations on
all the objects we create. For now, proxy-public is most useful,
especially on AWS.

Fixes #37

Author: yuvipanda

CHANGELOG.md

@@ -57,6 +57,7 @@ installation.
 * Support using a static PVC for user homes or for the hub db. This makes this release usable
   with clusters where you only have one NFS share that must be used for the whole hub.
 * PostgreSQL is now a supported hub database backend provider.
+* You can set annotations & labels on the proxy-public service now.
  
 ### Other Changes ###
 

jupyterhub/templates/proxy/service.yaml

@@ -14,6 +14,9 @@ apiVersion: v1
 kind: Service
 metadata:
   name: proxy-public
+  # toYaml + indent seem a lot more unstable & error prone
+  annotations: {{ toJson .Values.proxy.service.annotations }}
+  labels: {{ toJson .Values.proxy.service.labels }}
 spec:
   type: {{ .Values.proxy.service.type }}
   {{ if .Values.proxy.service.loadBalancerIP -}}

jupyterhub/values.yaml

@@ -28,6 +28,8 @@ proxy:
   secretToken: 'generate with openssl rand -hex 64'
   service:
     type: LoadBalancer
+    labels: {}
+    annotations: {}
   image:
     name: jupyterhub/configurable-http-proxy
     tag: 2.0.1